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vazorg [7]
3 years ago
11

Kelsey graphed the equation y = 3x + 1 as shown below.

Mathematics
2 answers:
siniylev [52]3 years ago
7 0
Kelsey graphed the slope as the y-intercept and the y-intercept as the slope.

dalvyx [7]3 years ago
6 0

The given equation of line in two variable is :

→y = 3 x +1

→→It is the slope intercept form of line having slope = 3 ,

and Y intercept = 1.

→→→Slope of line = Tan (theta)=3, i.e Angle made by line in positive direction of X axis.

we can draw its graph by taking any two points on the line

put , x= 0 gives y=1.

Put y=0, gives , x = \frac{-1}{3}  

So we will draw equation of line joining (0,1) and (\frac{-1}{3},0).

Or convert it into  intercept form which is :  \frac{x}{\frac {-1}{3}}+\frac{y}{1}=1

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KATRIN_1 [288]
We know that
x²+px−35=0-------> <span>has one root that is equal to 7
so
substitute x=7 in the equation
</span>7²+p*7−35=0
49+p*7−35=0
14+p*7=0
p=-14/7------> p=-2

the answer Part a) is 
t<span>he value of the coefficient p is -2
</span>
Part b) <span>Find the other root
</span>x²+px−35=0-----> x²-2x−35=0
<span>
using a graph tool-------> to resolve the second order equation
see the attached figure

the other root is
x=-5

the answer part b) is
</span> the value of  the other root is -5<span>

</span>

3 0
3 years ago
Circle O has a circumference of 88pie cm what is the radius of the circle
Snezhnost [94]

Answer:

44

Step-by-step explanation:

C=2 pi r

2 pi 88 >>>>>> 88/2=44

8 0
3 years ago
5) 1
solniwko [45]

Answer:

$3.49

Step-by-step explanation:

-The z value is calculated by the formula:

z=\frac{\bar x -\mu}{\sigma}

Where \mu, \sigma are the mean and standard deviation respectively and \bar x is the price of the random selection.

#We substitute and solve for \mu:

z=\frac{\bar x -\mu}{\sigma}\\\\1.6=\frac{4.29-\mu}{0.5}\\\\0.8=4.29-\mu\\\\\mu=3.49

Hence, the mean price of a box of cereal is $3.49

6 0
3 years ago
Which graph represents a reflection of f(x)=1/3(9)x
torisob [31]
The blue line is the original function the red line is the reflected function

7 0
3 years ago
I need help with LINES!
maksim [4K]

Answer:

2x=128

x=64

Step-by-step explanation:

alternate interior angles are equal

2x=128

x=128÷2

x=64

6 0
3 years ago
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